Google laid out a few important announcements today, which included both Android 4.3 and a new streaming device called Chromecast among others. As a result, the Play Music app was updated with support for Chromecast streaming last night, and Play Movies & TV received a very similar update today.

What's New

Send what you’re watching to your TV screen (when used with Chromecast).

Support for virtual surround sound on the new (2013) Nexus 7, and on the Nexus 10 running Android 4.3.